山东单县浅层高氟高碘地下水的水化学特征及成因分析  

Hydrochemical Characteristics and Genesis of Shallow Groundwater with High Fluoride and Iodine Content in Shan County, Shandong Province

作　　者：李清彩[1,2] 赵庆令 安茂国[1,2] 贾琛 王娜 LI Qingcai;ZHAO Qingling;AN Maoguo;JIA Chen;WANG Na(Lunan Geo-engineering Exploration Institute of Shandong Province(Shandong Provincial Bureau of Geology and Mineral Resources No.2 Geology Group),Jining 272100,China;Technology Innovation Center of Integrated Management and Ecological Restoration for Mining Subsidence Area,Ministry of Natural Resources,Jining 272100,China)

机构地区：[1]山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队),山东济宁272100 [2]自然资源部采煤沉陷区综合治理与生态修复工程技术创新中心,山东济宁272100

出　　处：《中国环境监测》2022年第5期134-143,共10页Environmental Monitoring in China

基　　金：山东省地下水水源地调查评价项目(鲁地环[2016]02号);山东省优质地下水勘查模式研究项目(KY201940)。

摘　　要：氟和碘作为人体必需的微量元素,过少或过多摄入都会影响人身健康,相较于缺氟、缺碘,高氟高碘地下水对人体的危害更加难以控制。该研究选择单县作为典型的水源型高氟高碘地区,通过对浅层高氟高碘地下水进行采样测试,采用箱线图、Piper图及双变量相关性分析等多元统计技术剖析了该区域浅层地下水的水环境特征;采用R型因子分析揭示了水化学成分之间的相互关系,探讨了该区浅层高氟高碘地下水的成因。结果表明:①单县浅层地下水中的氟化物和碘化物的质量浓度均值分别为1.2 mg/L和391μg/L。②随着氟化物浓度的增加,水化学类型偏向于向HCO_(3)-Na型和HCO_(3)-Na·Mg型集中,而随着碘化物浓度的增加,水化学类型则倾向于以HCO_(3)-Na·Mg为主。③该区域强烈的蒸发浓缩作用是控制单县浅层地下水化学成分的最重要因子;萤石平衡控制作用是控制单县浅层地下水高氟背景的因子;水-有机沉积物相互作用是控制单县浅层地下水高碘背景的因子。Fluoride and iodine are essential trace elements for human body,too little or too much intake will affect human health.Compared with fluoride and iodine deficiency,the harm of high fluoride and high iodine groundwater to human body is more difficult to control.In this study,Shan County was selected as a typical water source type area with high fluoride and iodine content.The water environment characteristics of shallow groundwater in this area were analyzed by box plot,Piper diagram and bivariate correlation analysis.The relationship between hydrochemical components was revealed by R-type factor analysis,and the genesis of the shallow high fluoride and high iodine groundwater in the area was discussed.The results showed that:1)The average contents of fluoride and iodide in shallow groundwater of Shan County were 1.2 mg/L and 391μg/L respectively.2)With the increase of fluoride concentration,the hydrochemical types tended to be HCO_(3)-Na type and HCO_(3)-Na·Mg type,while with the increase of iodide concentration,the hydrochemical types tended to be dominated by HCO_(3)-Na·Mgtype.3)The strong evaporation concentration was the most important factor to control the chemical composition of shallow groundwater;fluorite balance control was the factor controlling the high fluoride background of shallow groundwater;the interaction of water organic sediment was the factor controlling the high iodine background of shallow groundwater.

关 键 词：高氟 高碘 地下水 成因 单县 

分 类 号：X82[环境科学与工程—环境工程]